Tujuan dari penelitian ini adalah untuk mengetahui pengaruh harga udang galah, harga ikan, harga ayam, pendapatan dan jumlah tanggungan keluarga terhadap jumlah permintaan udang galah secara parsial dan simultan serta mengukur elastisitas permintaan udang galah di Kecamatan Sesayap Hilir Kabupaten Tana Tidung Kalimantan Utara. Sampel berjumlah 60 konsumen udang galah yang di tentukan dengan metode purposive sampling. Analisis data menggunakan analisis regresi linier berganda dengan bantuan SPSS. Hasil penelitian menunjukkan koefisien determinasi (R2) sebesar 28,8%. Hasil uji F menunjukkan bahwa variable bebas yang diamati secara serempak berpengaruh nyata terhadap permintaan udang galah pada tingkat kepercayaan 95%. Sedangkan hasil uji t yaitu ada tiga variable yang berpengaruh nyata terhadap permintaan udang galah yakni harga udang galah, harga ikan serta pendapatan dan variable yang tidak berpengaruh adalah harga ayam dan jumlah tanggungan keluarga. Berdasarkan hasil analisis regresi yang dihasilkan didapatkan nilai elastisitas harga udang galah bersifat elastis, harga ikan (subtitusi) bersifat inelastis, harga ayam (komplementer) bersifat elastis dan pendapatan menunjukkan udang galah merupakan barang normal bersifat inelastis.
Kata kunci: permintaan, analisis factor

The purposes of this research are to figure out the influence of price for giant freshwater prawn, fish, and chicken, as well as income and number of family dependents with demand for giant freshwater prawn partially and simultaneously; and to measure the demand elasticity for giant freshwater prawn in Sesayap Hilir District, Tana Tidung Regency, North Kalimantan. 60 samples of giant freshwater prawn customers were collected using a purposive sampling technique. The collected data were then analyzed using multiple linear regression equipped with SPSS. The research results show that the determination coefficient (R2) was 28.8%, Meanwhile, the F-test results show that the observed independent variable simultaneously influenced demand for giant freshwater prawn at the confident level of 95%. Meanwhile, the t-test results show that three variables consisting of price of giant freshwater prawn and fish as well as income significantly influenced demand for giant freshwater prawn. Meanwhile, price for chicken and number of family dependents did not influence for giant freshwater prawn. The regression analysis results show that the price value of giant freshwater prawn, fish (substitution), and chicken (complementary) was considered elastic, inelastic, and elastic, while the of income was inelastic indicating that giant freshwater prawn was something normal. Keyword: demand, factor analysis